Finding the Fourth Proportional to 1,665,949.10, 2,498,923.74 and 403,776.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,949.10 : 2,498,923.74 = 403,776.72 : x
2. Step 2: Convert to fraction form
   1,665,949.10/2,498,923.74 = 403,776.72/x
3. Step 3: Cross multiply
   1,665,949.10x = 2,498,923.74 × 403,776.72
4. Step 4: Simplify right side
   1,665,949.10x = 1,009,007,231,267.33
5. Step 5: Solve for x
   x = 1,009,007,231,267.33/1,665,949.10
6. Step 6: Final answer
   x = 605,665.10